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<head><meta charset="utf-8"><title>weekly meeting 2020-04-02 #54818 · t-compiler · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/index.html">t-compiler</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html">weekly meeting 2020-04-02 #54818</a></h3>

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<a name="192570394"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192570394" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192570394">(Apr 01 2020 at 18:14)</a>:</h4>
<p>Hi <span class="user-group-mention" data-user-group-id="897">@T-compiler/meeting</span> ; the triage meeting will be starting in 19 hours 46 minutes</p>



<a name="192570635"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192570635" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192570635">(Apr 01 2020 at 18:16)</a>:</h4>
<p>The <span class="user-group-mention" data-user-group-id="2403">@WG-prioritization</span> will be doing pre-triage in <a class="stream-topic" data-stream-id="227806" href="/#narrow/stream/227806-t-compiler.2Fwg-prioritization/topic/pre-meeting.20triage.202020-04-02.20.2354818">#t-compiler/wg-prioritization &gt; pre-meeting triage 2020-04-02 #54818</a></p>



<a name="192570707"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192570707" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192570707">(Apr 01 2020 at 18:16)</a>:</h4>
<p>we will have <span class="user-group-mention" data-user-group-id="1095">@T-compiler/WG-meta</span> and <span class="user-group-mention" data-user-group-id="1162">@WG-mir-opt</span> checkins</p>



<a name="192570780"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192570780" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192570780">(Apr 01 2020 at 18:17)</a>:</h4>
<p>I can provide the Meta WG update</p>



<a name="192570793"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192570793" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192570793">(Apr 01 2020 at 18:17)</a>:</h4>
<p><span class="user-mention" data-user-id="124288">@oli</span> can you do the Mir opt one?</p>



<a name="192571199"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192571199" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192571199">(Apr 01 2020 at 18:20)</a>:</h4>
<p><a href="https://hackmd.io/3ewramxPQm6GTUJaZ2lgOQ" title="https://hackmd.io/3ewramxPQm6GTUJaZ2lgOQ">here we will be filing the agenda for the meeting</a></p>



<a name="192618956"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192618956" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> oli <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192618956">(Apr 02 2020 at 04:08)</a>:</h4>
<p>sure</p>



<a name="192665765"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192665765" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192665765">(Apr 02 2020 at 13:35)</a>:</h4>
<p><span class="user-group-mention" data-user-group-id="897">@T-compiler/meeting</span>; the triage meeting will be starting in 25 minutes</p>



<a name="192668989"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192668989" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192668989">(Apr 02 2020 at 14:00)</a>:</h4>
<p>Hi <span class="user-group-mention" data-user-group-id="897">@T-compiler/meeting</span>! Add a <span aria-label="wave" class="emoji emoji-1f44b" role="img" title="wave">:wave:</span> emoji to show you're here :)</p>



<a name="192669034"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669034" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669034">(Apr 02 2020 at 14:01)</a>:</h4>
<p>We'll be starting off with five minutes for ...</p>



<a name="192669038"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669038" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669038">(Apr 02 2020 at 14:01)</a>:</h4>
<h2>Announcements</h2>



<a name="192669190"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669190" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669190">(Apr 02 2020 at 14:02)</a>:</h4>
<p>During pre-triage I noticed some discussion about the difficulty in identifying performance deltas in the face of roll-ups.</p>



<a name="192669199"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669199" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669199">(Apr 02 2020 at 14:02)</a>:</h4>
<p>Just a reminder: don't forget to use <code>rollup=never</code> on perf or otherwise sensitive PRs</p>



<a name="192669209"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669209" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> oli <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669209">(Apr 02 2020 at 14:02)</a>:</h4>
<p><span aria-label="wave" class="emoji emoji-1f44b" role="img" title="wave">:wave:</span> everyone, I'm attempting to get rid of our submodules (at least for tools). Lmk in <a href="https://github.com/rust-lang/compiler-team/issues/266" title="https://github.com/rust-lang/compiler-team/issues/266">https://github.com/rust-lang/compiler-team/issues/266</a> if you have opinions on the topic (e.g. on our future usage of <code>git subtree</code>)</p>



<a name="192669238"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669238" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669238">(Apr 02 2020 at 14:02)</a>:</h4>
<p>oh and <span class="user-mention" data-user-id="126931">@centril</span> renamed <code>librustc</code> to <code>librustc_middle</code>, I think that happened since the last meeting?</p>



<a name="192669272"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669272" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669272">(Apr 02 2020 at 14:03)</a>:</h4>
<ul>
<li>I 've been experimenting with using rust-analyzer on the rustc tree; I'm going to open a PR to extend x.py for better support, but i'm happy to report that it works overall quite well.</li>
</ul>



<a name="192669312"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669312" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669312">(Apr 02 2020 at 14:03)</a>:</h4>
<p><span class="user-mention" data-user-id="116009">@nikomatsakis</span> hah you're late to this <span aria-label="slight smile" class="emoji emoji-1f642" role="img" title="slight smile">:slight_smile:</span></p>



<a name="192669360"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669360" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669360">(Apr 02 2020 at 14:03)</a>:</h4>
<p>Many have been using rust-analyzer to hack on rustc and it works great ^^</p>



<a name="192669484"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669484" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669484">(Apr 02 2020 at 14:04)</a>:</h4>
<p>I'm aware, but you must not have been getting cargo watch integration</p>



<a name="192669497"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669497" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669497">(Apr 02 2020 at 14:04)</a>:</h4>
<p>Or else you have a trick I don't know :)</p>



<a name="192669520"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669520" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669520">(Apr 02 2020 at 14:04)</a>:</h4>
<p>o.O</p>



<a name="192669539"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669539" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669539">(Apr 02 2020 at 14:05)</a>:</h4>
<p><span class="user-mention" data-user-id="116009">@nikomatsakis</span> fancy! =P</p>



<a name="192669545"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669545" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669545">(Apr 02 2020 at 14:05)</a>:</h4>
<p>we have a lot on our <a href="https://hackmd.io/3ewramxPQm6GTUJaZ2lgOQ" title="https://hackmd.io/3ewramxPQm6GTUJaZ2lgOQ">agenda for today</a>, so lets dive in.</p>



<a name="192669580"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669580" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669580">(Apr 02 2020 at 14:05)</a>:</h4>
<p><span class="user-mention" data-user-id="116083">@pnkfelix</span> you didn't paste news from the agenda :)</p>



<a name="192669586"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669586" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669586">(Apr 02 2020 at 14:05)</a>:</h4>
<p>oh, there was one item there for the announcements</p>



<a name="192669596"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669596" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669596">(Apr 02 2020 at 14:05)</a>:</h4>
<ul>
<li>Do we agree on adding an <code>I-prioritize</code> like label?<ul>
<li>So we can have I-nominated for let's discuss this and I-prioritize as a request for prioritization.</li>
<li>Should it be <code>I-prioritize</code>, <code>P-prioritize</code> or maybe <code>WG-prioritization</code>?.</li>
</ul>
</li>
<li>Tomorrow: Design meeting: cranelift backend for rustc</li>
</ul>



<a name="192669598"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669598" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669598">(Apr 02 2020 at 14:05)</a>:</h4>
<p>or two</p>



<a name="192669627"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669627" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669627">(Apr 02 2020 at 14:05)</a>:</h4>
<p>so yeah, the back-story on <code>I-prioritize</code></p>



<a name="192669636"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669636" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669636">(Apr 02 2020 at 14:05)</a>:</h4>
<p>we've had <code>I-nominated</code> for ages</p>



<a name="192669697"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669697" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669697">(Apr 02 2020 at 14:06)</a>:</h4>
<p>initially, it was used for "this needs to be brought to the attention of the relevant team"</p>



<a name="192669731"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669731" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669731">(Apr 02 2020 at 14:06)</a>:</h4>
<p><code>I-nominated</code> current description says:  <code>Indicates that an issue has been nominated for prioritizing at the next team triage meeting.</code></p>



<a name="192669744"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669744" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669744">(Apr 02 2020 at 14:06)</a>:</h4>
<p>and over time, as bugs were filed that needed to be triaged, it was used for that too</p>



<a name="192669771"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669771" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Wesley Wiser <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669771">(Apr 02 2020 at 14:06)</a>:</h4>
<ul>
<li><span class="user-mention" data-user-id="124288">@oli</span> Has done some really awesome work on our <code>mir-opt</code> testing infrastructure. You can now create <code>mir-opt</code> tests which are <code>--bless</code>able. Even better, the format for storing the expected test results is now just a diff of the before and after MIR for a pass (<a href="https://github.com/rust-lang/rust/blob/75e2e8c71b4988324ebed0696d0177030d26be1d/src/test/mir-opt/simplify-locals-removes-unused-discriminant-reads/rustc.map.SimplifyLocals.diff" title="https://github.com/rust-lang/rust/blob/75e2e8c71b4988324ebed0696d0177030d26be1d/src/test/mir-opt/simplify-locals-removes-unused-discriminant-reads/rustc.map.SimplifyLocals.diff">for example</a>). <a href="https://github.com/rust-lang/rust/pull/69916" title="https://github.com/rust-lang/rust/pull/69916">https://github.com/rust-lang/rust/pull/69916</a></li>
</ul>



<a name="192669798"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669798" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669798">(Apr 02 2020 at 14:07)</a>:</h4>
<p><span class="user-mention silent" data-user-id="116266">Santiago Pastorino</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818/near/192669731" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818/near/192669731">said</a>:</p>
<blockquote>
<p><code>I-nominated</code> current description says:  <code>Indicates that an issue has been nominated for prioritizing at the next team triage meeting.</code></p>
</blockquote>
<p>hmm well I don't recall the original intent being that specific</p>



<a name="192669808"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669808" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Wesley Wiser <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669808">(Apr 02 2020 at 14:07)</a>:</h4>
<p>/me oops, sorry, I was getting some links for that</p>



<a name="192669836"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669836" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669836">(Apr 02 2020 at 14:07)</a>:</h4>
<p>Basically <code>I-nominated</code> is somewhat confusing... is it nominated for triage, or for discussion?</p>



<a name="192669840"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669840" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669840">(Apr 02 2020 at 14:07)</a>:</h4>
<p>in any case, the proposal is to attempt to split off a more specific label</p>



<a name="192669842"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669842" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669842">(Apr 02 2020 at 14:07)</a>:</h4>
<p>e.g., if it is <code>I-nominated T-compiler T-lang</code></p>



<a name="192669946"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669946" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669946">(Apr 02 2020 at 14:08)</a>:</h4>
<p>The only misgiving I currently have about splitting off a new label, is that, at least at first, WG-prioritization is <em>still</em> going to need to go over the <code>I-nominated</code> issues and prioritize them</p>



<a name="192669951"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669951" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669951">(Apr 02 2020 at 14:08)</a>:</h4>
<p>Seems good to have a more specific label</p>



<a name="192669963"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669963" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669963">(Apr 02 2020 at 14:08)</a>:</h4>
<p>since not everyone would switch immediately</p>



<a name="192669989"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192669989" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192669989">(Apr 02 2020 at 14:08)</a>:</h4>
<p>I think the switch will go fast</p>



<a name="192670000"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192670000" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192670000">(Apr 02 2020 at 14:09)</a>:</h4>
<p>and I'm not sure whether they would be expected to actually write feedback on the issue saying "please use <code>I-prioritize</code> for this in the future"</p>



<a name="192670015"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192670015" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192670015">(Apr 02 2020 at 14:09)</a>:</h4>
<p>we can tell the triagists to use the new label</p>



<a name="192670030"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192670030" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192670030">(Apr 02 2020 at 14:09)</a>:</h4>
<p>but yes, I think if the WG-triage uses the new label</p>



<a name="192670073"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192670073" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192670073">(Apr 02 2020 at 14:09)</a>:</h4>
<p>then it should go very fast, because I think WG-triage is the primary source of issues being tagged with <code>I-nominated</code> for purposes of prioritization</p>



<a name="192670085"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192670085" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192670085">(Apr 02 2020 at 14:09)</a>:</h4>
<p>(and a lot of the adding of that label is done by release team members anyways ^^)</p>



<a name="192670105"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192670105" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192670105">(Apr 02 2020 at 14:09)</a>:</h4>
<p>(or maybe its WG-release, not sure)</p>



<a name="192670153"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192670153" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192670153">(Apr 02 2020 at 14:10)</a>:</h4>
<p>(T-release? Anyway...)</p>



<a name="192670157"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192670157" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192670157">(Apr 02 2020 at 14:10)</a>:</h4>
<p>One final announcement:</p>
<p>There are 3 pending T-compiler FCP requests</p>
<ul>
<li>merge: Add Option to Force Unwind Tables (<a href="https://github.com/rust-lang/rust/issues/69984" title="https://github.com/rust-lang/rust/issues/69984">rust-lang/rust#69984</a>)  -- </li>
<li>merge: Remove -Z no-landing-pads flag (<a href="https://github.com/rust-lang/rust/issues/70175" title="https://github.com/rust-lang/rust/issues/70175">rust-lang/rust#70175</a>) (<span class="user-mention" data-user-id="116466">@Zoxc</span>, <span class="user-mention" data-user-id="119031">@Esteban Küber</span>, <span class="user-mention" data-user-id="123856">@Vadim Petrochenkov</span>, <span class="user-mention" data-user-id="121053">@varkor</span>)</li>
<li>merge: Move LLVM bitcode destination (<a href="https://github.com/rust-lang/rust/issues/70458" title="https://github.com/rust-lang/rust/issues/70458">rust-lang/rust#70458</a>)  (<span class="user-mention" data-user-id="116466">@Zoxc</span>, <span class="user-mention" data-user-id="119031">@Esteban Küber</span>, <span class="user-mention" data-user-id="116118">@Matthew Jasper</span>, <span class="user-mention" data-user-id="123586">@nagisa</span>, <span class="user-mention" data-user-id="123856">@Vadim Petrochenkov</span>, <span class="user-mention" data-user-id="116083">@pnkfelix</span>, <span class="user-mention" data-user-id="121053">@varkor</span>)</li>
</ul>
<p>Check your boxes :)</p>



<a name="192670177"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192670177" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192670177">(Apr 02 2020 at 14:10)</a>:</h4>
<p>(T-release, wg-triage is a WG of that team)</p>



<a name="192670279"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192670279" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192670279">(Apr 02 2020 at 14:11)</a>:</h4>
<p>Anyway I don't anticipate any real problems. If anyone objects to adding <code>I-prioritize</code> label, or feels strongly that it should have a different name, or a different "category" than <code>I-</code>, please let <span class="user-group-mention" data-user-group-id="2403">@WG-prioritization</span> know.</p>



<a name="192670335"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192670335" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192670335">(Apr 02 2020 at 14:11)</a>:</h4>
<ul>
<li>Oh, and please welcome <span class="user-mention" data-user-id="211727">@Jonas Schievink</span> and <span class="user-mention" data-user-id="125294">@Aaron Hill</span> to the compiler team contributors</li>
</ul>



<a name="192670421"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192670421" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192670421">(Apr 02 2020 at 14:12)</a>:</h4>
<p>(and then, yes, as <span class="user-mention" data-user-id="116266">@Santiago Pastorino</span> said, there is a T-compiler design meeting tomorrow on integrating a cranelift backend.)</p>



<a name="192670479"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192670479" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192670479">(Apr 02 2020 at 14:12)</a>:</h4>
<p>Now, as previously noted, lets make headway on this <a href="https://hackmd.io/3ewramxPQm6GTUJaZ2lgOQ" title="https://hackmd.io/3ewramxPQm6GTUJaZ2lgOQ">big agenda</a></p>



<a name="192670517"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192670517" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192670517">(Apr 02 2020 at 14:13)</a>:</h4>
<p><a href="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=label%3Abeta-nominated+label%3AT-compiler" title="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=label%3Abeta-nominated+label%3AT-compiler">beta nominations</a>: 2</p>



<a name="192670550"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192670550" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192670550">(Apr 02 2020 at 14:13)</a>:</h4>
<p>beta-nom 1/2: "Fix "since" field for <code>Once::is_complete</code>'s <code>#[stable]</code> attribute" <a href="https://github.com/rust-lang/rust/pull/70018" title="https://github.com/rust-lang/rust/pull/70018">#70018</a></p>



<a name="192670583"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192670583" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192670583">(Apr 02 2020 at 14:13)</a>:</h4>
<p>(I added t-compiler to this cause I don't think t-libs has regular meetings)</p>



<a name="192670644"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192670644" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192670644">(Apr 02 2020 at 14:14)</a>:</h4>
<p>this certainly seems harmless</p>



<a name="192670692"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192670692" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192670692">(Apr 02 2020 at 14:14)</a>:</h4>
<p>I'm curious: Does it have an affect on anything beyond the docs?</p>



<a name="192670713"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192670713" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192670713">(Apr 02 2020 at 14:14)</a>:</h4>
<p>Nope</p>



<a name="192670799"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192670799" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192670799">(Apr 02 2020 at 14:14)</a>:</h4>
<p>okay. I guess beta-accepted.</p>



<a name="192670862"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192670862" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192670862">(Apr 02 2020 at 14:15)</a>:</h4>
<p>beta-nom 2/2: "parse_and_disallow_postfix_after_cast: account for <code>ExprKind::Err</code>." <a href="https://github.com/rust-lang/rust/pull/70556" title="https://github.com/rust-lang/rust/pull/70556">#70556</a></p>



<a name="192671060"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192671060" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192671060">(Apr 02 2020 at 14:16)</a>:</h4>
<p>seems fine to me too. beta-accepted.</p>



<a name="192671088"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192671088" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192671088">(Apr 02 2020 at 14:16)</a>:</h4>
<p>We don't have any stable nominations this week</p>



<a name="192671179"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192671179" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192671179">(Apr 02 2020 at 14:17)</a>:</h4>
<p>There was one PR marked waiting on team. (But I'm wondering whether FCP requests should be similarly marked, based on <span class="user-mention" data-user-id="116009">@nikomatsakis</span> 's note above...)</p>



<a name="192671227"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192671227" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192671227">(Apr 02 2020 at 14:17)</a>:</h4>
<p>We have S-waiting-on-fcp and S-waiting-on-team</p>



<a name="192671268"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192671268" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192671268">(Apr 02 2020 at 14:18)</a>:</h4>
<p>The PR marked S-waiting-on-team is "Remove -Z no-landing-pads flag" <a href="https://github.com/rust-lang/rust/pull/70175" title="https://github.com/rust-lang/rust/pull/70175">#70175</a></p>



<a name="192671272"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192671272" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192671272">(Apr 02 2020 at 14:18)</a>:</h4>
<p>the former for things already in FCP (not PFCP)</p>



<a name="192671349"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192671349" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192671349">(Apr 02 2020 at 14:18)</a>:</h4>
<p>currently waiting on <span class="user-mention" data-user-id="116466">@Zoxc</span>, <span class="user-mention" data-user-id="119031">@Esteban Küber</span>, <span class="user-mention" data-user-id="123856">@Vadim Petrochenkov</span>, and <span class="user-mention" data-user-id="121053">@varkor</span></p>



<a name="192671419"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192671419" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192671419">(Apr 02 2020 at 14:19)</a>:</h4>
<p>okay, but two of the three issues that <span class="user-mention" data-user-id="116009">@nikomatsakis</span> noted at the top have neither of the labels <span class="user-mention" data-user-id="126931">@centril</span> mentioned. One of them is marked <code>S-waiting-on-review</code>, so that makes sense</p>



<a name="192671448"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192671448" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192671448">(Apr 02 2020 at 14:19)</a>:</h4>
<p>I adjusted those labels</p>



<a name="192671519"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192671519" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192671519">(Apr 02 2020 at 14:19)</a>:</h4>
<p>I'm basically wondering if the rfcbot should be auto-adding the waiting-on-team label if the issue is not already marked as waiting on something else.</p>



<a name="192671525"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192671525" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192671525">(Apr 02 2020 at 14:20)</a>:</h4>
<p>anyway...</p>



<a name="192671591"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192671591" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192671591">(Apr 02 2020 at 14:20)</a>:</h4>
<p>Sure, but no one is hacking on rfcbot :P</p>



<a name="192671683"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192671683" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> DPC <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192671683">(Apr 02 2020 at 14:21)</a>:</h4>
<p>you want someone to? :P</p>



<a name="192671692"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192671692" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192671692">(Apr 02 2020 at 14:21)</a>:</h4>
<p><span class="user-mention" data-user-id="116009">@nikomatsakis</span> already mentioned the three issues: "Add Option to Force Unwind Tables" (<a href="https://github.com/rust-lang/rust/issues/69984" title="https://github.com/rust-lang/rust/issues/69984">rust-lang/rust#69984</a>), "Remove -Z no-landing-pads flag" (<a href="https://github.com/rust-lang/rust/issues/70175" title="https://github.com/rust-lang/rust/issues/70175">rust-lang/rust#70175</a>), "Move LLVM bitcode destination" (<a href="https://github.com/rust-lang/rust/issues/70458" title="https://github.com/rust-lang/rust/issues/70458">rust-lang/rust#70458</a>). Just want to make sure at least mentioned them again.</p>



<a name="192671756"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192671756" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192671756">(Apr 02 2020 at 14:21)</a>:</h4>
<p><span class="user-mention" data-user-id="120823">@DPC</span> that would be nice, there are a bunch of feature requests</p>



<a name="192671783"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192671783" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> DPC <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192671783">(Apr 02 2020 at 14:21)</a>:</h4>
<p>sure, let's talk after this</p>



<a name="192671794"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192671794" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192671794">(Apr 02 2020 at 14:21)</a>:</h4>
<p>okay, so issues of note</p>



<a name="192671812"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192671812" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192671812">(Apr 02 2020 at 14:21)</a>:</h4>
<p>There are <a href="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+is%3Aissue+label%3AT-compiler+label%3AP-high+" title="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+is%3Aissue+label%3AT-compiler+label%3AP-high+">51 P-high issues</a> (1 more than last week)</p>



<a name="192671860"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192671860" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192671860">(Apr 02 2020 at 14:22)</a>:</h4>
<p><a href="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+is%3Aissue+label%3AT-compiler+label%3AP-high+no%3Aassignee" title="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+is%3Aissue+label%3AT-compiler+label%3AP-high+no%3Aassignee">28 of those are unassigned</a> (2 less than last week)</p>



<a name="192671899"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192671899" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192671899">(Apr 02 2020 at 14:22)</a>:</h4>
<p>(this is all data as of yesterday, so don't be surprised if the numbers have changed slightly)</p>



<a name="192671916"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192671916" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192671916">(Apr 02 2020 at 14:22)</a>:</h4>
<p><a href="https://github.com/rust-lang/rust/labels/regression-from-stable-to-beta" title="https://github.com/rust-lang/rust/labels/regression-from-stable-to-beta">2 P-high and 2 P-medium regression-from-stable-to-beta</a></p>



<a name="192671932"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192671932" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192671932">(Apr 02 2020 at 14:22)</a>:</h4>
<p>and <a href="https://github.com/rust-lang/rust/labels/regression-from-stable-to-nightly" title="https://github.com/rust-lang/rust/labels/regression-from-stable-to-nightly">2 P-high and 4 P-medium regression-from-stable-to-nightly</a></p>



<a name="192671957"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192671957" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192671957">(Apr 02 2020 at 14:22)</a>:</h4>
<p><span class="user-mention silent" data-user-id="116083">pnkfelix</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818/near/192671899" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818/near/192671899">said</a>:</p>
<blockquote>
<p>(this is all data as of yesterday, so don't be surprised if the numbers have changed slightly)</p>
</blockquote>
<p>I've adjusted those before the meeting</p>



<a name="192672002"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672002" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672002">(Apr 02 2020 at 14:23)</a>:</h4>
<p>/msg <span class="user-mention" data-user-id="116266">@Santiago Pastorino</span> we probably should encode in the pre-triage procedure to call out the unassigned regressions</p>



<a name="192672026"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672026" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672026">(Apr 02 2020 at 14:23)</a>:</h4>
<p>doh</p>



<a name="192672055"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672055" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672055">(Apr 02 2020 at 14:23)</a>:</h4>
<p>What, IRC commands no work here?! <span aria-label="angry devil" class="emoji emoji-1f47f" role="img" title="angry devil">:angry_devil:</span></p>



<a name="192672057"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672057" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672057">(Apr 02 2020 at 14:23)</a>:</h4>
<p>yeah it's below :)</p>



<a name="192672071"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672071" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672071">(Apr 02 2020 at 14:23)</a>:</h4>
<p>oh okay</p>



<a name="192672092"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672092" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672092">(Apr 02 2020 at 14:23)</a>:</h4>
<p>I see now</p>



<a name="192672150"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672150" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672150">(Apr 02 2020 at 14:24)</a>:</h4>
<p>there is one unassigned stable-to-beta regression: “no_mangle causes compilation errors with async-await on armv7-linux-androideabi and aarch64-linux-android targets” <a href="https://github.com/rust-lang/rust/issues/70098" title="https://github.com/rust-lang/rust/issues/70098">#70098</a></p>



<a name="192672225"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672225" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672225">(Apr 02 2020 at 14:24)</a>:</h4>
<p>this sounds like you don't actually need the hardware to test this, you just need to have the cross-compiling toolchain installed (and the patience to work with it)</p>



<a name="192672280"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672280" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672280">(Apr 02 2020 at 14:25)</a>:</h4>
<p>Is this a regression, do we know?</p>



<a name="192672287"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672287" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672287">(Apr 02 2020 at 14:25)</a>:</h4>
<p><span class="user-mention" data-user-id="116009">@nikomatsakis</span> do you think the <span class="user-group-mention" data-user-group-id="1172">@WG-async-foundations</span> is going to look at this? Or should we be asking here?</p>



<a name="192672292"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672292" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672292">(Apr 02 2020 at 14:25)</a>:</h4>
<p>It's categorized as that, but what PR regressed it?</p>



<a name="192672313"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672313" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672313">(Apr 02 2020 at 14:25)</a>:</h4>
<p>I guess we don't know yet</p>



<a name="192672330"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672330" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672330">(Apr 02 2020 at 14:25)</a>:</h4>
<p>this is <em>weird</em></p>



<a name="192672343"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672343" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672343">(Apr 02 2020 at 14:25)</a>:</h4>
<p>Well, it's not presently tagged as "async-await",</p>



<a name="192672394"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672394" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672394">(Apr 02 2020 at 14:26)</a>:</h4>
<p>does the <code>async</code> block inherit the <code>#[no_mangle]</code> accidentally?!</p>



<a name="192672406"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672406" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672406">(Apr 02 2020 at 14:26)</a>:</h4>
<p>and it <em>seems</em> like it's not necessarily an async-await error</p>



<a name="192672417"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672417" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672417">(Apr 02 2020 at 14:26)</a>:</h4>
<p>But maybe it is..?</p>



<a name="192672466"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672466" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672466">(Apr 02 2020 at 14:26)</a>:</h4>
<p>(This is P-medium btw)</p>



<a name="192672532"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672532" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672532">(Apr 02 2020 at 14:27)</a>:</h4>
<p>True, it is P-medium</p>



<a name="192672610"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672610" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672610">(Apr 02 2020 at 14:27)</a>:</h4>
<p>well I've tagged with A-async-await</p>



<a name="192672703"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672703" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672703">(Apr 02 2020 at 14:28)</a>:</h4>
<p>OK. <span class="user-mention" data-user-id="119009">@eddyb</span> <a href="https://github.com/rust-lang/rust/issues/70098#issuecomment-605524096" title="https://github.com/rust-lang/rust/issues/70098#issuecomment-605524096">this reproduction</a> suggests that the problem is not really the async block inheriting no-mangle</p>



<a name="192672742"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672742" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672742">(Apr 02 2020 at 14:28)</a>:</h4>
<p>it would be nice if someone could poke at it after the meeting.</p>



<a name="192672750"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672750" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672750">(Apr 02 2020 at 14:28)</a>:</h4>
<p>anyway, lets keep moving</p>



<a name="192672751"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672751" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672751">(Apr 02 2020 at 14:28)</a>:</h4>
<p>but maybe that's a separate thing</p>



<a name="192672757"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672757" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672757">(Apr 02 2020 at 14:28)</a>:</h4>
<p>that has more to do with putting no-mangle on main</p>



<a name="192672759"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672759" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672759">(Apr 02 2020 at 14:28)</a>:</h4>
<p>what does the <code>#[no_mangle]</code> <em>even do</em></p>



<a name="192672798"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672798" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672798">(Apr 02 2020 at 14:28)</a>:</h4>
<p>are we sure it's not just equivalent to <code>pub</code>?</p>



<a name="192672808"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672808" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672808">(Apr 02 2020 at 14:28)</a>:</h4>
<p>there are five stable-to-nightly regressions that are unassigned.</p>



<a name="192672833"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672833" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672833">(Apr 02 2020 at 14:29)</a>:</h4>
<p><span class="user-mention" data-user-id="119009">@eddyb</span> best to investigate after meeting <span aria-label="slight smile" class="emoji emoji-1f642" role="img" title="slight smile">:slight_smile:</span></p>



<a name="192672866"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672866" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672866">(Apr 02 2020 at 14:29)</a>:</h4>
<p>unassigned regression 1/5: “internal compiler error: cannot relate region: LUB(ReErased, ReErased)” <a href="https://github.com/rust-lang/rust/issues/70608" title="https://github.com/rust-lang/rust/issues/70608">#70608</a></p>



<a name="192672878"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672878" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672878">(Apr 02 2020 at 14:29)</a>:</h4>
<p><span class="user-mention" data-user-id="126931">@centril</span> sure just noting for whomever will</p>



<a name="192672927"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192672927" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192672927">(Apr 02 2020 at 14:29)</a>:</h4>
<p>Is <span class="user-mention" data-user-id="116118">@Matthew Jasper</span> here?</p>



<a name="192673005"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192673005" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192673005">(Apr 02 2020 at 14:30)</a>:</h4>
<p>curious, though the fix might just be to modify LUB of two erased to yield erased</p>



<a name="192673030"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192673030" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192673030">(Apr 02 2020 at 14:30)</a>:</h4>
<p>I could see that it's an artifact of erasure flowing into some other pipeline</p>



<a name="192673087"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192673087" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192673087">(Apr 02 2020 at 14:30)</a>:</h4>
<p>should we just assign to <span class="user-mention" data-user-id="116118">@Matthew Jasper</span> ?</p>



<a name="192673102"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192673102" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192673102">(Apr 02 2020 at 14:31)</a>:</h4>
<p>seems a bit dubious, trait system doesn't use subtyping, does it?</p>



<a name="192673156"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192673156" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192673156">(Apr 02 2020 at 14:31)</a>:</h4>
<p>oh we're missing the backtrace</p>



<a name="192673158"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192673158" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192673158">(Apr 02 2020 at 14:31)</a>:</h4>
<p><span class="user-mention silent" data-user-id="116083">pnkfelix</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818/near/192673087" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818/near/192673087">said</a>:</p>
<blockquote>
<p>should we just assign to <span class="user-mention silent" data-user-id="116118">Matthew Jasper</span> ?</p>
</blockquote>
<p>(on the assumption that this is indeed due to PR <a href="https://github.com/rust-lang/rust/issues/69189" title="https://github.com/rust-lang/rust/issues/69189">#69189</a> )</p>



<a name="192673174"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192673174" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192673174">(Apr 02 2020 at 14:31)</a>:</h4>
<p>( it can, to deal with equality and higher-ranked things, but I'm not sure this is coming out of the trait system )</p>



<a name="192673218"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192673218" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192673218">(Apr 02 2020 at 14:31)</a>:</h4>
<p>if <span class="user-mention" data-user-id="116118">@Matthew Jasper</span> can look good, else I can do some quick investigation perhaps</p>



<a name="192673232"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192673232" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192673232">(Apr 02 2020 at 14:31)</a>:</h4>
<p><span class="user-mention" data-user-id="119031">@Esteban Küber</span> <span class="user-mention" data-user-id="126931">@centril</span> do we have some label that could mean "needs backtrace"? should we add one?</p>



<a name="192673247"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192673247" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192673247">(Apr 02 2020 at 14:32)</a>:</h4>
<p>I'm going to assign to <span class="user-mention" data-user-id="116118">@Matthew Jasper</span> for now</p>



<a name="192673331"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192673331" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192673331">(Apr 02 2020 at 14:32)</a>:</h4>
<p>oh wait I didn't look at the example, I know what this is</p>



<a name="192673369"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192673369" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192673369">(Apr 02 2020 at 14:32)</a>:</h4>
<p><span class="user-mention" data-user-id="119009">@eddyb</span> added a backtrace</p>



<a name="192673523"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192673523" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192673523">(Apr 02 2020 at 14:33)</a>:</h4>
<p>unassigned regression 2/5: "Some macro errors now include file names into the standard library (JSON)." <a href="https://github.com/rust-lang/rust/issues/70396" title="https://github.com/rust-lang/rust/issues/70396">#70396</a></p>



<a name="192673564"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192673564" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192673564">(Apr 02 2020 at 14:33)</a>:</h4>
<p>Curious, this doesn't repro with:</p>
<div class="codehilite"><pre><span></span><span class="k">const</span><span class="w"> </span><span class="n">e</span>: <span class="nc">_</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="o">&amp;</span><span class="w"> </span><span class="o">&amp;</span><span class="w"> </span><span class="mi">39</span><span class="p">;</span><span class="w"></span>
</pre></div>



<a name="192673586"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192673586" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192673586">(Apr 02 2020 at 14:33)</a>:</h4>
<p>so this is probably my fault :D</p>



<a name="192673637"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192673637" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192673637">(Apr 02 2020 at 14:34)</a>:</h4>
<p>yeah left a comment</p>



<a name="192673721"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192673721" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192673721">(Apr 02 2020 at 14:34)</a>:</h4>
<p><span class="user-mention" data-user-id="126931">@centril</span> actually that's probably buggy in a different way</p>



<a name="192673874"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192673874" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192673874">(Apr 02 2020 at 14:35)</a>:</h4>
<p>I'm not exactly clear on what our options for <a href="https://github.com/rust-lang/rust/issues/70396" title="https://github.com/rust-lang/rust/issues/70396">#70396</a> even are</p>



<a name="192673940"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192673940" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192673940">(Apr 02 2020 at 14:35)</a>:</h4>
<p>is the bug filer saying we should be omitting the <code>filename:</code> field in the JSON for this case?</p>



<a name="192674002"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674002" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674002">(Apr 02 2020 at 14:36)</a>:</h4>
<p><span class="user-mention" data-user-id="119009">@eddyb</span> did some work related to <a href="https://github.com/rust-lang/rust/issues/70396" title="https://github.com/rust-lang/rust/issues/70396">#70396</a>?</p>



<a name="192674046"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674046" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674046">(Apr 02 2020 at 14:36)</a>:</h4>
<p>sorry I was still on the last issue</p>



<a name="192674091"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674091" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674091">(Apr 02 2020 at 14:36)</a>:</h4>
<p>why is this nominated?</p>



<a name="192674106"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674106" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674106">(Apr 02 2020 at 14:36)</a>:</h4>
<p>(<a href="https://github.com/rust-lang/rust/pull/70642" title="https://github.com/rust-lang/rust/pull/70642">https://github.com/rust-lang/rust/pull/70642</a>)</p>



<a name="192674107"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674107" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674107">(Apr 02 2020 at 14:36)</a>:</h4>
<p>Its not nominated. Its an unassigned regression</p>



<a name="192674113"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674113" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674113">(Apr 02 2020 at 14:36)</a>:</h4>
<p>is it breaking tooling?</p>



<a name="192674127"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674127" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674127">(Apr 02 2020 at 14:36)</a>:</h4>
<p>so I want us to either assign it or talk about it</p>



<a name="192674160"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674160" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674160">(Apr 02 2020 at 14:37)</a>:</h4>
<p>I couldn't <em>quite</em> tell from the comments :)</p>



<a name="192674179"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674179" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674179">(Apr 02 2020 at 14:37)</a>:</h4>
<p>(or explicitly close it, or mark it as P-medium, etc)</p>



<a name="192674196"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674196" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674196">(Apr 02 2020 at 14:37)</a>:</h4>
<p>in any case I too am a bit unclear on what behavior we think is "desired" here</p>



<a name="192674199"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674199" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674199">(Apr 02 2020 at 14:37)</a>:</h4>
<p>it's not exactly a regression in the strictest sense, except maybe for tools that were assuming far too much, I haven't seen a good example yet</p>



<a name="192674228"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674228" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674228">(Apr 02 2020 at 14:37)</a>:</h4>
<p>it would've been possible to break those tools before, just not with macros</p>



<a name="192674273"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674273" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674273">(Apr 02 2020 at 14:37)</a>:</h4>
<p>(Oh it already <em>is</em> marked as P-medium)</p>



<a name="192674282"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674282" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674282">(Apr 02 2020 at 14:37)</a>:</h4>
<p>I think it's perfectly valid to say "working as expected" and guide tools in what they ought to do; I think your final comment goes in that direction, I didn't quite understand exactly what you were suggesting though, but maybe IDE authors did :)</p>



<a name="192674285"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674285" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674285">(Apr 02 2020 at 14:37)</a>:</h4>
<p>anyway, once <a href="https://github.com/rust-lang/rust/issues/70642" title="https://github.com/rust-lang/rust/issues/70642">#70642</a> lands, most of this should be addressed via <code>rust-src</code></p>



<a name="192674366"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674366" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674366">(Apr 02 2020 at 14:38)</a>:</h4>
<p>if you have it, the paths will point to a local copy of <code>libstd</code></p>



<a name="192674377"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674377" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674377">(Apr 02 2020 at 14:38)</a>:</h4>
<p>okay gotta keep going</p>



<a name="192674407"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674407" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674407">(Apr 02 2020 at 14:38)</a>:</h4>
<p><span class="user-mention" data-user-id="119009">@eddyb</span> are you willing to take assignment on this?</p>



<a name="192674442"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674442" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674442">(Apr 02 2020 at 14:38)</a>:</h4>
<p>sure, I guess</p>



<a name="192674454"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674454" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674454">(Apr 02 2020 at 14:38)</a>:</h4>
<p>unassigned regressions 3/5: “file not found for module” <a href="https://github.com/rust-lang/rust/issues/70314" title="https://github.com/rust-lang/rust/issues/70314">#70314</a></p>



<a name="192674527"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674527" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674527">(Apr 02 2020 at 14:39)</a>:</h4>
<p>I was hoping <a href="https://github.com/rust-lang/rust/issues/70314" title="https://github.com/rust-lang/rust/issues/70314">#70314</a> would have a reasonably sized reproducer by now</p>



<a name="192674577"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674577" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674577">(Apr 02 2020 at 14:39)</a>:</h4>
<p>I fixed a related bug which had a repro, but I can't fix it (assuming it's a bug) if I ain't got one</p>



<a name="192674726"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674726" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674726">(Apr 02 2020 at 14:40)</a>:</h4>
<p>Well, we know it regressed due to commit <a href="https://github.com/rust-lang/rust/commit/57e1da59cd0761330b4ea8d47b16340a78eeafa9" title="https://github.com/rust-lang/rust/commit/57e1da59cd0761330b4ea8d47b16340a78eeafa9">https://github.com/rust-lang/rust/commit/57e1da59cd0761330b4ea8d47b16340a78eeafa9</a>, but that's a rollup</p>



<a name="192674746"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674746" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674746">(Apr 02 2020 at 14:40)</a>:</h4>
<p>yes it doesn't seem like <a href="https://github.com/rust-lang/rust/issues/70314" title="https://github.com/rust-lang/rust/issues/70314">#70314</a> is quite actionable on our end yet</p>



<a name="192674748"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674748" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674748">(Apr 02 2020 at 14:40)</a>:</h4>
<p>A rollup of a rollup?</p>



<a name="192674779"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674779" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674779">(Apr 02 2020 at 14:41)</a>:</h4>
<p>Probably <a href="https://github.com/rust-lang/rust/issues/69838" title="https://github.com/rust-lang/rust/issues/69838">#69838</a></p>



<a name="192674789"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674789" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674789">(Apr 02 2020 at 14:41)</a>:</h4>
<p><span class="user-mention" data-user-id="116009">@nikomatsakis</span> I know, ain't it glorious? :D</p>



<a name="192674809"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674809" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674809">(Apr 02 2020 at 14:41)</a>:</h4>
<p>Yeah, agreed, I guess we can leave some comments encouraging folks to make a more minimal example</p>



<a name="192674816"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674816" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674816">(Apr 02 2020 at 14:41)</a>:</h4>
<p>isn't that the module loading changes?</p>



<a name="192674828"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674828" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674828">(Apr 02 2020 at 14:41)</a>:</h4>
<p>Yes</p>



<a name="192674836"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674836" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674836">(Apr 02 2020 at 14:41)</a>:</h4>
<p>Yeah I would be shocked if it wasn't <a href="https://github.com/rust-lang/rust/pull/69838" title="https://github.com/rust-lang/rust/pull/69838">https://github.com/rust-lang/rust/pull/69838</a></p>



<a name="192674860"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674860" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674860">(Apr 02 2020 at 14:41)</a>:</h4>
<p><a href="https://github.com/rust-lang/rust/issues/70314#issuecomment-604471059" title="https://github.com/rust-lang/rust/issues/70314#issuecomment-604471059">https://github.com/rust-lang/rust/issues/70314#issuecomment-604471059</a> suggests it's not the exact same thing that got fixed</p>



<a name="192674914"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674914" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674914">(Apr 02 2020 at 14:42)</a>:</h4>
<p>hmm rollups of rollups are going to complicate any attempt we make to have tooling descend into rollups</p>



<a name="192674940"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192674940" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192674940">(Apr 02 2020 at 14:42)</a>:</h4>
<p>the rollup-of-rollup was done for a build-unbreaking reason but yeah :(</p>



<a name="192675055"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675055" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675055">(Apr 02 2020 at 14:43)</a>:</h4>
<p>lets give the cleanup crew another week to try to make an MCVE</p>



<a name="192675082"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675082" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675082">(Apr 02 2020 at 14:43)</a>:</h4>
<p>maybe I'll tweet about it and/or offer to mentor the process</p>



<a name="192675123"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675123" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675123">(Apr 02 2020 at 14:43)</a>:</h4>
<p>unassigned regression 4/5: “Regression in error message quality for macro_rules involving $:ident” <a href="https://github.com/rust-lang/rust/issues/69604" title="https://github.com/rust-lang/rust/issues/69604">#69604</a></p>



<a name="192675271"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675271" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675271">(Apr 02 2020 at 14:44)</a>:</h4>
<p>this is also P-medium</p>



<a name="192675283"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675283" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675283">(Apr 02 2020 at 14:44)</a>:</h4>
<p>for reasons documented on the issue</p>



<a name="192675294"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675294" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675294">(Apr 02 2020 at 14:44)</a>:</h4>
<p><span class="user-mention" data-user-id="123856">@Vadim Petrochenkov</span> asked whether the other metadata PR improved things in <a href="https://github.com/rust-lang/rust/issues/69604#issuecomment-594737564" title="https://github.com/rust-lang/rust/issues/69604#issuecomment-594737564">https://github.com/rust-lang/rust/issues/69604#issuecomment-594737564</a></p>



<a name="192675333"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675333" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675333">(Apr 02 2020 at 14:45)</a>:</h4>
<p>no developments since then</p>



<a name="192675356"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675356" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675356">(Apr 02 2020 at 14:45)</a>:</h4>
<p>it could possibly be fixed already</p>



<a name="192675358"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675358" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675358">(Apr 02 2020 at 14:45)</a>:</h4>
<p>I'll leave <a href="https://github.com/rust-lang/rust/issues/69604" title="https://github.com/rust-lang/rust/issues/69604">#69604</a> unassigned</p>



<a name="192675407"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675407" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675407">(Apr 02 2020 at 14:45)</a>:</h4>
<p>would be good, between now and next week, to double check if this replicates.</p>



<a name="192675422"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675422" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675422">(Apr 02 2020 at 14:45)</a>:</h4>
<p>unassigned regression 5/5: “Compiler error while compiling Winrt” <a href="https://github.com/rust-lang/rust/issues/66402" title="https://github.com/rust-lang/rust/issues/66402">#66402</a></p>



<a name="192675445"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675445" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675445">(Apr 02 2020 at 14:45)</a>:</h4>
<p><span class="user-mention" data-user-id="116083">@pnkfelix</span> maybe let's leave a comment asking David to recheck <span aria-label="slight smile" class="emoji emoji-1f642" role="img" title="slight smile">:slight_smile:</span></p>



<a name="192675499"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675499" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675499">(Apr 02 2020 at 14:46)</a>:</h4>
<p>oh lordy never mind about <a href="https://github.com/rust-lang/rust/issues/66402" title="https://github.com/rust-lang/rust/issues/66402">#66402</a></p>



<a name="192675522"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675522" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675522">(Apr 02 2020 at 14:46)</a>:</h4>
<p>(its just E-needstest)</p>



<a name="192675589"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675589" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675589">(Apr 02 2020 at 14:46)</a>:</h4>
<p>we have five nominated issues</p>



<a name="192675616"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675616" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675616">(Apr 02 2020 at 14:47)</a>:</h4>
<p>(luckily its effectively four because we already discussed one of them)</p>



<a name="192675634"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675634" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675634">(Apr 02 2020 at 14:47)</a>:</h4>
<p>nom 1/5: “Box&lt;dyn FnOnce&gt; doesn’t respect self alignment” <a href="https://github.com/rust-lang/rust/issues/68304" title="https://github.com/rust-lang/rust/issues/68304">#68304</a></p>



<a name="192675673"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675673" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675673">(Apr 02 2020 at 14:47)</a>:</h4>
<blockquote>
<p>I just checked and, a function call <code>r = f(a, b, c)</code> <a href="https://play.rust-lang.org/?version=nightly&amp;mode=release&amp;edition=2018&amp;gist=8feebe9d6b7738b25b68ba492c44d848" title="https://play.rust-lang.org/?version=nightly&amp;mode=release&amp;edition=2018&amp;gist=8feebe9d6b7738b25b68ba492c44d848">turns into</a> roughly this (touched up for clarity):<br>
<code>rust
_1 = move a;
_2 = move b;
_3 = move c;
_4 = f(move _1, move _2, move _3);
r = move _4; 
</code><br>
Some of my previous comments assumed the <code>r = move _4</code> wasn't there and the call would use the destination directly, but given that there is a move, that simplifies my suggestion.</p>
<p>&lt;hr/&gt;</p>
<h3>Summary of my proposal</h3>
<p>For virtual by-value <code>self</code> calls, we can skip one move when building the MIR, specifically the move out of the dereference of a <code>Box&lt;dyn Trait&gt;</code> for the <code>self</code> argument.<br>
Given that we already move the result of the call, there should be no aliasing caused by this, but if we decide to change anything about how we build MIR calls, we'd need to be extra careful.</p>
<p>We can also make this pattern be gated by a separate feature-gate (rather than <code>unsized_locals</code>), and make sure the standard library only uses that feature-gate and not <code>unsized_locals</code>.</p>
<p>This should solve any alignment issues <code>Box&lt;dyn FnOnce(...) -&gt; _&gt;</code> might have, because we'd not be using dynamic <code>alloca</code> unless the broader <code>unsized_locals</code> feature is used.</p>
</blockquote>



<a name="192675674"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675674" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675674">(Apr 02 2020 at 14:47)</a>:</h4>
<p><span class="user-mention" data-user-id="119009">@eddyb</span> has put forth a proposal for <a href="https://github.com/rust-lang/rust/issues/68304" title="https://github.com/rust-lang/rust/issues/68304">#68304</a> on the issue itself</p>



<a name="192675814"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675814" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> bjorn3 <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675814">(Apr 02 2020 at 14:48)</a>:</h4>
<p>I vote in favor of the proposal</p>



<a name="192675845"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675845" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675845">(Apr 02 2020 at 14:48)</a>:</h4>
<p><span class="user-mention" data-user-id="119009">@eddyb</span> -- is this basically the 'original unsized locals' proposal? ie., we only permit unsized locals for cases where we can point to the original storage, and don't require a move?</p>



<a name="192675872"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675872" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675872">(Apr 02 2020 at 14:49)</a>:</h4>
<p>or a subset thereof, in some sense</p>



<a name="192675881"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675881" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675881">(Apr 02 2020 at 14:49)</a>:</h4>
<p>right</p>



<a name="192675888"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675888" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675888">(Apr 02 2020 at 14:49)</a>:</h4>
<p>excerpted and given a distinct feature gate?</p>



<a name="192675912"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675912" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675912">(Apr 02 2020 at 14:49)</a>:</h4>
<p>The proposal has some components that seem ... optional? Like gating the pattern under a feature gate ...?</p>



<a name="192675915"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675915" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675915">(Apr 02 2020 at 14:49)</a>:</h4>
<p>OK <span aria-label="+1" class="emoji emoji-1f44d" role="img" title="+1">:+1:</span> I'm in favor too, I'll leave a comment</p>



<a name="192675958"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675958" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675958">(Apr 02 2020 at 14:49)</a>:</h4>
<p>Seems like a good idea to restrict libstd's usage of this</p>



<a name="192675969"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192675969" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192675969">(Apr 02 2020 at 14:49)</a>:</h4>
<p>to prevent accidents</p>



<a name="192676023"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676023" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676023">(Apr 02 2020 at 14:50)</a>:</h4>
<p>but I think we're all in favor of such gating, right? Any objections?</p>



<a name="192676039"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676039" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676039">(Apr 02 2020 at 14:50)</a>:</h4>
<p>somehow we ended up with calling <code>Box&lt;dyn FnOnce()&gt;</code> doing a dynamic alloca (and copying into it) <em>before</em> the virtual call, I'm not sure we ever intended for this (<code>Box&lt;dyn FnBox()&gt;</code> didn't have this problem)</p>



<a name="192676087"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676087" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676087">(Apr 02 2020 at 14:50)</a>:</h4>
<p>okay, I think there's no one <em>objecting</em>, at least</p>



<a name="192676098"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676098" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676098">(Apr 02 2020 at 14:50)</a>:</h4>
<p>no one is assigned to this ticket</p>



<a name="192676128"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676128" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676128">(Apr 02 2020 at 14:50)</a>:</h4>
<p><span class="user-mention" data-user-id="119009">@eddyb</span> got time to tackle this?</p>



<a name="192676148"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676148" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676148">(Apr 02 2020 at 14:50)</a>:</h4>
<p>I wonder if anyone from <span class="user-group-mention" data-user-group-id="1162">@WG-mir-opt</span> wants to do some parts of this</p>



<a name="192676183"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676183" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676183">(Apr 02 2020 at 14:51)</a>:</h4>
<p>so I suspect we'll just touch on it every week until someone gets fed up with me mentioning it</p>



<a name="192676184"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676184" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676184">(Apr 02 2020 at 14:51)</a>:</h4>
<p>I don't think I'll be able to spend much time on it in the next month or two</p>



<a name="192676203"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676203" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676203">(Apr 02 2020 at 14:51)</a>:</h4>
<p>(but I could mentor)</p>



<a name="192676234"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676234" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676234">(Apr 02 2020 at 14:51)</a>:</h4>
<p>perhaps <span class="user-mention" data-user-id="125250">@Wesley Wiser</span> <span class="user-mention" data-user-id="124288">@oli</span> or <span class="user-mention" data-user-id="133247">@bjorn3</span> ?</p>



<a name="192676244"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676244" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676244">(Apr 02 2020 at 14:51)</a>:</h4>
<p><span class="user-mention" data-user-id="116266">@Santiago Pastorino</span> might be interested</p>



<a name="192676246"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676246" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676246">(Apr 02 2020 at 14:51)</a>:</h4>
<p>I don't want to attempt to find an assignee right now, but I do think querying <span class="user-group-mention" data-user-group-id="1162">@WG-mir-opt</span> is a good idea</p>



<a name="192676271"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676271" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676271">(Apr 02 2020 at 14:51)</a>:</h4>
<p>nominated 2/5: “internal compiler error: cannot relate region: LUB(ReErased, ReErased)” <a href="https://github.com/rust-lang/rust/issues/70608" title="https://github.com/rust-lang/rust/issues/70608">#70608</a></p>



<a name="192676279"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676279" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676279">(Apr 02 2020 at 14:51)</a>:</h4>
<p>(that said, I remember a possible complication, going to do some experiments and leave a comment)</p>



<a name="192676281"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676281" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676281">(Apr 02 2020 at 14:51)</a>:</h4>
<p><span class="user-mention silent" data-user-id="116009">nikomatsakis</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818/near/192676244" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818/near/192676244">said</a>:</p>
<blockquote>
<p><span class="user-mention silent" data-user-id="116266">Santiago Pastorino</span> might be interested</p>
</blockquote>
<p><span aria-label="+1" class="emoji emoji-1f44d" role="img" title="+1">:+1:</span></p>



<a name="192676308"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676308" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676308">(Apr 02 2020 at 14:52)</a>:</h4>
<p>we already discussed <a href="https://github.com/rust-lang/rust/issues/70608" title="https://github.com/rust-lang/rust/issues/70608">#70608</a></p>



<a name="192676358"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676358" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676358">(Apr 02 2020 at 14:52)</a>:</h4>
<p>nominated 3/5: “regression: assertion failed: data.is_empty()” <a href="https://github.com/rust-lang/rust/issues/70445" title="https://github.com/rust-lang/rust/issues/70445">#70445</a></p>



<a name="192676402"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676402" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> bjorn3 <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676402">(Apr 02 2020 at 14:52)</a>:</h4>
<p><span class="user-mention" data-user-id="126931">@centril</span> I don't think I will be able work on rustc itself for now.</p>



<a name="192676409"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676409" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676409">(Apr 02 2020 at 14:52)</a>:</h4>
<p>Matthew says its already fixed?</p>



<a name="192676434"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676434" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676434">(Apr 02 2020 at 14:53)</a>:</h4>
<p><span class="user-mention" data-user-id="116118">@Matthew Jasper</span> has stated they think <a href="https://github.com/rust-lang/rust/issues/70445" title="https://github.com/rust-lang/rust/issues/70445">#70445</a> is fixed. and this appears like it was a prioritization request, anyway?</p>



<a name="192676446"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676446" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676446">(Apr 02 2020 at 14:53)</a>:</h4>
<p><span class="user-mention" data-user-id="116122">@simulacrum</span> do you want to check?</p>



<a name="192676456"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676456" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676456">(Apr 02 2020 at 14:53)</a>:</h4>
<p>or should we just close?</p>



<a name="192676464"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676464" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676464">(Apr 02 2020 at 14:53)</a>:</h4>
<p>or, no the priority was addeed at the same time as the I-nominated ?</p>



<a name="192676492"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676492" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676492">(Apr 02 2020 at 14:53)</a>:</h4>
<p><span class="user-mention" data-user-id="116083">@pnkfelix</span>  that's a suggested priority</p>



<a name="192676495"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676495" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676495">(Apr 02 2020 at 14:53)</a>:</h4>
<p>anyway we should check if it is indeed fixed</p>



<a name="192676514"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676514" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676514">(Apr 02 2020 at 14:53)</a>:</h4>
<p>Suggested priority?</p>



<a name="192676534"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676534" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676534">(Apr 02 2020 at 14:53)</a>:</h4>
<p>Okay</p>



<a name="192676540"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676540" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676540">(Apr 02 2020 at 14:54)</a>:</h4>
<p><span class="user-mention" data-user-id="116083">@pnkfelix</span> a priority suggested by me to be rejected or accepted at prioritization</p>



<a name="192676760"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676760" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676760">(Apr 02 2020 at 14:55)</a>:</h4>
<p>anyway it sounds like it is in hand, one way or another</p>



<a name="192676796"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676796" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676796">(Apr 02 2020 at 14:55)</a>:</h4>
<p>nominated 4/5: “internal compiler error: no type for local variable” <a href="https://github.com/rust-lang/rust/issues/70594" title="https://github.com/rust-lang/rust/issues/70594">#70594</a></p>



<a name="192676798"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676798" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676798">(Apr 02 2020 at 14:55)</a>:</h4>
<p>Hmm; I'm not so sure it is</p>



<a name="192676823"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676823" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676823">(Apr 02 2020 at 14:55)</a>:</h4>
<p>It's not clear to me who will confirm whether it was fixed</p>



<a name="192676856"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676856" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676856">(Apr 02 2020 at 14:55)</a>:</h4>
<p>unless we say that Matthew has already confirmed</p>



<a name="192676982"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192676982" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192676982">(Apr 02 2020 at 14:56)</a>:</h4>
<p>I'm confused by that comment</p>



<a name="192677012"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677012" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677012">(Apr 02 2020 at 14:56)</a>:</h4>
<p>mine or Matthew's?</p>



<a name="192677017"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677017" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677017">(Apr 02 2020 at 14:56)</a>:</h4>
<p>Are you referring to <a href="https://github.com/rust-lang/rust/issues/70594" title="https://github.com/rust-lang/rust/issues/70594">#70594</a>, <span class="user-mention" data-user-id="126931">@centril</span> ?</p>



<a name="192677036"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677036" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677036">(Apr 02 2020 at 14:56)</a>:</h4>
<p><span class="user-mention" data-user-id="116009">@nikomatsakis</span> no, <a href="https://github.com/rust-lang/rust/issues/70445" title="https://github.com/rust-lang/rust/issues/70445">https://github.com/rust-lang/rust/issues/70445</a></p>



<a name="192677045"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677045" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677045">(Apr 02 2020 at 14:57)</a>:</h4>
<p>Oh, ok</p>



<a name="192677067"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677067" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677067">(Apr 02 2020 at 14:57)</a>:</h4>
<p>It seems like <a href="https://github.com/rust-lang/rust/issues/70594" title="https://github.com/rust-lang/rust/issues/70594">#70594</a> has a pending fix by <span class="user-mention" data-user-id="211727">@Jonas Schievink</span></p>



<a name="192677133"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677133" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677133">(Apr 02 2020 at 14:57)</a>:</h4>
<p>It's a fuzzer regression with useful-ish diagnostics, so medium is ok I thnk</p>



<a name="192677134"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677134" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677134">(Apr 02 2020 at 14:57)</a>:</h4>
<p>Usually when I have a fix, I remove I-nominated from an issue so it need not end up in a meeting <span aria-label="slight smile" class="emoji emoji-1f642" role="img" title="slight smile">:slight_smile:</span></p>



<a name="192677168"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677168" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677168">(Apr 02 2020 at 14:57)</a>:</h4>
<p>sorry, had to step away for a moment, I think we should keep <a href="https://github.com/rust-lang/rust/issues/70445" title="https://github.com/rust-lang/rust/issues/70445">https://github.com/rust-lang/rust/issues/70445</a> open until we confirm it's fixed</p>



<a name="192677218"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677218" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677218">(Apr 02 2020 at 14:58)</a>:</h4>
<p>I plan to do beta backports today</p>



<a name="192677232"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677232" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677232">(Apr 02 2020 at 14:58)</a>:</h4>
<p>I certainly wasn't suggesting that we close <a href="https://github.com/rust-lang/rust/issues/70445" title="https://github.com/rust-lang/rust/issues/70445">#70445</a></p>



<a name="192677268"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677268" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677268">(Apr 02 2020 at 14:58)</a>:</h4>
<p>I just meant that it is assigned</p>



<a name="192677320"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677320" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677320">(Apr 02 2020 at 14:58)</a>:</h4>
<p>the fact that it is nominated, sounds like <span class="user-mention" data-user-id="126931">@centril</span> was asking WG-prioritization to confirm their suggested priority</p>



<a name="192677338"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677338" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677338">(Apr 02 2020 at 14:58)</a>:</h4>
<p>but hell, I'm not a mind reader so who knows</p>



<a name="192677367"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677367" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677367">(Apr 02 2020 at 14:59)</a>:</h4>
<p><span class="user-mention" data-user-id="116083">@pnkfelix</span> yep</p>



<a name="192677408"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677408" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Esteban Küber <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677408">(Apr 02 2020 at 14:59)</a>:</h4>
<p>In the last minute I wanted to ask, what should we do about joke PRs that should be harmless?</p>



<a name="192677432"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677432" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677432">(Apr 02 2020 at 14:59)</a>:</h4>
<p>wait wait</p>



<a name="192677440"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677440" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677440">(Apr 02 2020 at 14:59)</a>:</h4>
<p>we have one last nominatino</p>



<a name="192677443"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677443" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677443">(Apr 02 2020 at 14:59)</a>:</h4>
<p>lets try to cover it</p>



<a name="192677476"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677476" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677476">(Apr 02 2020 at 14:59)</a>:</h4>
<p>nominated 5/5: “Should enum discriminants have generics in scope?” <a href="https://github.com/rust-lang/rust/issues/70453" title="https://github.com/rust-lang/rust/issues/70453">#70453</a></p>



<a name="192677488"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677488" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Esteban Küber <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677488">(Apr 02 2020 at 14:59)</a>:</h4>
<p>Sure</p>



<a name="192677594"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677594" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677594">(Apr 02 2020 at 15:00)</a>:</h4>
<p>though <a href="https://github.com/rust-lang/rust/issues/70453" title="https://github.com/rust-lang/rust/issues/70453">#70453</a> may not be the kind of issue we can resolve in one minute of discussion</p>



<a name="192677632"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677632" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677632">(Apr 02 2020 at 15:00)</a>:</h4>
<p>so we could just agree to leave it for next week? Okay?</p>



<a name="192677637"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677637" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Esteban Küber <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677637">(Apr 02 2020 at 15:00)</a>:</h4>
<p>I feel we should have led with it <span aria-label="sweat smile" class="emoji emoji-1f605" role="img" title="sweat smile">:sweat_smile:</span></p>



<a name="192677644"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677644" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677644">(Apr 02 2020 at 15:00)</a>:</h4>
<p>lol</p>



<a name="192677652"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677652" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677652">(Apr 02 2020 at 15:00)</a>:</h4>
<p>it's not important though</p>



<a name="192677683"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677683" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677683">(Apr 02 2020 at 15:01)</a>:</h4>
<p>feel free to leave your own comments on the issue if you have thoughts</p>



<a name="192677692"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677692" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677692">(Apr 02 2020 at 15:01)</a>:</h4>
<p>seems good to defer</p>



<a name="192677699"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677699" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677699">(Apr 02 2020 at 15:01)</a>:</h4>
<p>interesting problem :)</p>



<a name="192677702"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677702" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677702">(Apr 02 2020 at 15:01)</a>:</h4>
<p>okay lets defer</p>



<a name="192677712"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677712" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677712">(Apr 02 2020 at 15:01)</a>:</h4>
<p>hmm; <a href="https://github.com/rust-lang/rust/issues/70453" title="https://github.com/rust-lang/rust/issues/70453">#70453</a> might get resolved at tonight's meeting anyways <span aria-label="slight smile" class="emoji emoji-1f642" role="img" title="slight smile">:slight_smile:</span></p>



<a name="192677723"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677723" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677723">(Apr 02 2020 at 15:01)</a>:</h4>
<p>so back to <span class="user-mention" data-user-id="119031">@Esteban Küber</span> 's question</p>



<a name="192677737"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677737" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677737">(Apr 02 2020 at 15:01)</a>:</h4>
<p>( I have a hard stop )</p>



<a name="192677744"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677744" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677744">(Apr 02 2020 at 15:01)</a>:</h4>
<p>oh yeah I should try to attend lang meetings even passively</p>



<a name="192677747"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677747" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677747">(Apr 02 2020 at 15:01)</a>:</h4>
<p><span class="user-mention" data-user-id="119031">@Esteban Küber</span> are we talking about April 1'st PR's or something?</p>



<a name="192677768"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677768" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Esteban Küber <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677768">(Apr 02 2020 at 15:01)</a>:</h4>
<p>Yep <a href="https://github.com/rust-lang/rust/pull/70645" title="https://github.com/rust-lang/rust/pull/70645">https://github.com/rust-lang/rust/pull/70645</a></p>



<a name="192677844"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677844" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677844">(Apr 02 2020 at 15:02)</a>:</h4>
<p>/me has voice/video call bandwidth now because WFH</p>



<a name="192677848"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677848" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677848">(Apr 02 2020 at 15:02)</a>:</h4>
<p><span aria-label="pineapple" class="emoji emoji-1f34d" role="img" title="pineapple">:pineapple:</span>  on <span aria-label="pizza" class="emoji emoji-1f355" role="img" title="pizza">:pizza:</span>  is clearly immoral <span aria-label="slight smile" class="emoji emoji-1f642" role="img" title="slight smile">:slight_smile:</span></p>



<a name="192677852"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677852" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Esteban Küber <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677852">(Apr 02 2020 at 15:02)</a>:</h4>
<p>That was closed by somebody else, but honestly it seemed harmless enough</p>



<a name="192677915"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677915" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677915">(Apr 02 2020 at 15:02)</a>:</h4>
<p>I think closing is correct :)</p>



<a name="192677947"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677947" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677947">(Apr 02 2020 at 15:02)</a>:</h4>
<p>I think we close joke PR's quickly. April 1st ones can wait until April 2nd.</p>



<a name="192677957"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677957" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677957">(Apr 02 2020 at 15:02)</a>:</h4>
<p>Though I enjoyed the PR</p>



<a name="192677962"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677962" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Esteban Küber <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677962">(Apr 02 2020 at 15:03)</a>:</h4>
<p>Beyond the culinary ethics, should we accept code to handle things like break 'rust</p>



<a name="192677992"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192677992" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192677992">(Apr 02 2020 at 15:03)</a>:</h4>
<p>are you asking, should we add easter eggs?</p>



<a name="192678007"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192678007" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192678007">(Apr 02 2020 at 15:03)</a>:</h4>
<p><span class="user-mention" data-user-id="119031">@Esteban Küber</span>  <code>break rust;</code> has a technical purpose <span aria-label="slight smile" class="emoji emoji-1f642" role="img" title="slight smile">:slight_smile:</span></p>



<a name="192678012"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192678012" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192678012">(Apr 02 2020 at 15:03)</a>:</h4>
<p>I'm inclined not to :)</p>



<a name="192678032"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192678032" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192678032">(Apr 02 2020 at 15:03)</a>:</h4>
<p>Hey <span class="user-mention" data-user-id="116266">@Santiago Pastorino</span> and <span class="user-mention" data-user-id="124288">@oli</span> : I have to go</p>



<a name="192678033"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192678033" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Esteban Küber <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192678033">(Apr 02 2020 at 15:03)</a>:</h4>
<p>Or accept them if people come with them</p>



<a name="192678068"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192678068" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192678068">(Apr 02 2020 at 15:03)</a>:</h4>
<p>says <span class="user-mention" data-user-id="120791">@RalfJ</span>  <a href="https://github.com/rust-lang/rust/issues/70661" title="https://github.com/rust-lang/rust/issues/70661">https://github.com/rust-lang/rust/issues/70661</a></p>



<a name="192678070"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192678070" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192678070">(Apr 02 2020 at 15:03)</a>:</h4>
<p>but can you each post your WG's updates in turn? Maybe <span class="user-mention" data-user-id="116266">@Santiago Pastorino</span> can let <span class="user-mention" data-user-id="124288">@oli</span> go first?</p>



<a name="192678146"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192678146" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Esteban Küber <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192678146">(Apr 02 2020 at 15:04)</a>:</h4>
<p>Ok, that settles it, no Easter eggs <span aria-label="egg" class="emoji emoji-1f95a" role="img" title="egg">:egg:</span></p>



<a name="192678148"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192678148" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192678148">(Apr 02 2020 at 15:04)</a>:</h4>
<p>(that is, <span class="user-mention" data-user-id="124288">@oli</span> first, then <span class="user-mention" data-user-id="116266">@Santiago Pastorino</span> after with WG-meta)</p>



<a name="192678162"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192678162" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192678162">(Apr 02 2020 at 15:04)</a>:</h4>
<p><span class="user-mention silent" data-user-id="119031">Esteban Küber</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818/near/192678033" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818/near/192678033">said</a>:</p>
<blockquote>
<p>Or accept them if people come with them</p>
</blockquote>
<p>Depends on how funny they are? :P</p>



<a name="192678257"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192678257" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> DPC <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192678257">(Apr 02 2020 at 15:04)</a>:</h4>
<p>close it else you might get a ping from triage :D</p>



<a name="192678296"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192678296" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> oli <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192678296">(Apr 02 2020 at 15:04)</a>:</h4>
<h1>wg-mir-opt checking</h1>
<ul>
<li>
<p>MIR optimizations have --bless support <a href="https://github.com/rust-lang/rust/issues/69916" title="https://github.com/rust-lang/rust/issues/69916">#69916</a><br>
    * Please use by removing handwritten MIR patterns and adding <code>// MIR_DUMP rustc.FOO.OptPass.diff</code></p>
</li>
<li>
<p>Place: Copy because the base is just a <code>Local</code> nowadays <a href="https://github.com/rust-lang/rust/issues/70627" title="https://github.com/rust-lang/rust/issues/70627">#70627</a></p>
</li>
<li>Visitor::visit_body takes <code>&amp;Body</code> instead of <code>&amp;BodyAndCache</code> <a href="https://github.com/rust-lang/rust/issues/70449" title="https://github.com/rust-lang/rust/issues/70449">#70449</a></li>
</ul>



<a name="192678373"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192678373" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192678373">(Apr 02 2020 at 15:05)</a>:</h4>
<h3>T-compiler/meta</h3>
<ul>
<li>Create major_change issue template <a href="https://github.com/rust-lang/compiler-team/pull/232" title="https://github.com/rust-lang/compiler-team/pull/232">#232</a></li>
<li>Hoping to move forward shortly with the <a href="https://hackmd.io/VhVSTwgiTcmEslbpC7qCOQ" title="https://hackmd.io/VhVSTwgiTcmEslbpC7qCOQ">Major Change Proposal RFC</a> --<ul>
<li>process is intentionally quite lightweight</li>
<li>to do this right, it'll also be a change for all of us to identify PRs that are making major changes and ensure they go through the process</li>
</ul>
</li>
<li>After this, thinking about creating a document to help guide people through processes:<ul>
<li>"So you'd like to do X?"</li>
<li>In particular, the process around adding and stabilizing command line flags seems to be coming up a lot</li>
</ul>
</li>
</ul>



<a name="192679496"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192679496" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192679496">(Apr 02 2020 at 15:11)</a>:</h4>
<blockquote>
<ul>
<li>Please use by removing handwritten MIR patterns and adding <code>// MIR_DUMP rustc.FOO.OptPass.diff</code></li>
</ul>
</blockquote>
<p>do you mean <code>EMIT_MIR</code>? :P</p>



<a name="192679567"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192679567" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192679567">(Apr 02 2020 at 15:12)</a>:</h4>
<p><span class="user-mention" data-user-id="116083">@pnkfelix</span> btw, don't forget to add beta-accepted to the PRs <span aria-label="slight smile" class="emoji emoji-1f642" role="img" title="slight smile">:slight_smile:</span></p>



<a name="192679605"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192679605" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192679605">(Apr 02 2020 at 15:12)</a>:</h4>
<p>(also, @anyska is on it, idk how many mir-opt tests she'll change though)</p>



<a name="192679723"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192679723" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> oli <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192679723">(Apr 02 2020 at 15:13)</a>:</h4>
<p>oops</p>



<a name="192679735"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192679735" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> oli <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192679735">(Apr 02 2020 at 15:13)</a>:</h4>
<p>yea <code>EMIT_MIR</code></p>



<a name="192679740"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192679740" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192679740">(Apr 02 2020 at 15:13)</a>:</h4>
<p><span class="user-mention" data-user-id="116122">@simulacrum</span>  should I assign you to <a href="https://github.com/rust-lang/rust/issues/70445" title="https://github.com/rust-lang/rust/issues/70445">https://github.com/rust-lang/rust/issues/70445</a> to check whether it was fixed?</p>



<a name="192679843"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192679843" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192679843">(Apr 02 2020 at 15:14)</a>:</h4>
<p>I guess? I mean anyone can do that work</p>



<a name="192693053"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192693053" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192693053">(Apr 02 2020 at 16:34)</a>:</h4>
<p><span class="user-mention" data-user-id="116009">@nikomatsakis</span> wait, are we doing FCP or anything like that for the <code>git subtree</code> switch?</p>



<a name="192693081"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192693081" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192693081">(Apr 02 2020 at 16:34)</a>:</h4>
<p>I recall something along the lines of we'll discuss it in the meeting, but did we?</p>



<a name="192700230"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192700230" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192700230">(Apr 02 2020 at 17:32)</a>:</h4>
<p>we didn't discuss it in this meeting</p>



<a name="192700245"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192700245" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192700245">(Apr 02 2020 at 17:32)</a>:</h4>
<p>if its high priority, I suppose we could allocate time for it at the beginning of the design meeting tomorrow</p>



<a name="192700262"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192700262" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192700262">(Apr 02 2020 at 17:33)</a>:</h4>
<p>otherwise, it could wait until next thursday</p>



<a name="192700326"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192700326" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192700326">(Apr 02 2020 at 17:33)</a>:</h4>
<p>I think the hope was that we'd do it relatively soon, but I'm not sure</p>



<a name="192700781"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192700781" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192700781">(Apr 02 2020 at 17:37)</a>:</h4>
<p>I mean as with all things we want to do them sooner rather than later</p>



<a name="192700793"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192700793" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192700793">(Apr 02 2020 at 17:37)</a>:</h4>
<p>But I think it can be async FCP, personally</p>



<a name="192700843"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192700843" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192700843">(Apr 02 2020 at 17:37)</a>:</h4>
<p>OTOH, I don't think oli has kicked that off (and I think they can?)</p>



<a name="192700860"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192700860" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192700860">(Apr 02 2020 at 17:37)</a>:</h4>
<p>cc <span class="user-mention" data-user-id="124288">@oli</span></p>



<a name="192701156"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192701156" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192701156">(Apr 02 2020 at 17:40)</a>:</h4>
<p>lets at least mention it in the design meeting tomorrow. That will hopefully help get/keep the ball rolling.</p>



<a name="192701179"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192701179" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192701179">(Apr 02 2020 at 17:40)</a>:</h4>
<p><a href="https://github.com/rust-lang/compiler-team/issues/266" title="https://github.com/rust-lang/compiler-team/issues/266">https://github.com/rust-lang/compiler-team/issues/266</a> is the major change issue</p>



<a name="192701229"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192701229" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192701229">(Apr 02 2020 at 17:41)</a>:</h4>
<p>Ah, that's something <em>else</em> we need to add to the standing agenda. :)</p>



<a name="192702431"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192702431" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> oli <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192702431">(Apr 02 2020 at 17:50)</a>:</h4>
<p>I haven't done an FCP, because I have no clue what the next step on the major changes proposal is</p>



<a name="192702452"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192702452" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> oli <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192702452">(Apr 02 2020 at 17:50)</a>:</h4>
<p>(except mention it in the announcements of the compiler mtg)</p>



<a name="192728976"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-04-02%20%2354818/near/192728976" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818.html#192728976">(Apr 02 2020 at 21:27)</a>:</h4>
<p><span class="user-mention silent" data-user-id="119009">eddyb</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818/near/192679605" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-04-02.20.2354818/near/192679605">said</a>:</p>
<blockquote>
<p>(also, @anyska is on it, idk how many mir-opt tests she'll change though)</p>
</blockquote>
<p>the answer is "all of them" turns out: <a href="https://github.com/rust-lang/rust/issues/70721" title="https://github.com/rust-lang/rust/issues/70721">#70721</a></p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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